rehooreh14
09.12.2020 •
Chemistry
Which of the following substance is most likely basic
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Ответ:
Please provide answer options. :)
Ответ:
a) 13.2 moles
b) 79.33 grams of
Explanation:
First, we'll need to balance the equation
→
There are 2 (O) on the left and only one on the right, so we'll add a 2 coefficient to the right.
→
Now there are 4 (H) on the right and only 2 on the left, so we'll add a 2 coefficient to the () on the left.
→
The equation is now balanced.
a) This can be solved with a simple mole ratio.
4.6 moles × = 13.2 moles
b) This problem is solved the same way!
2.2 moles × = 2.2 moles
However, this problem wants the mass of , not the moles.
The molecular weight of is the weight of 4 (H) molecules and 2 (O) molecules (found on the periodic table). So,
4(1.008) + 2(15.999) = 36.03 g/mol
2.2 moles × = 79.33 grams of